Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c2ba093a920cf59…

MALICIOUS

PDF

44.9 KB Created: 2020-08-10 19:12:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 87a942d9e86ac5a2d75d07308ae900da SHA-1: 1820c5eb57305319895e7eb5588b144ec5582ac3 SHA-256: 0c2ba093a920cf59dd5c8c824d3c5332d5765e8aa40d1674ee910e99da294cac
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.cc). This indicates a link farm or phishing attempt designed to lead users to malicious content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=list+of+architects+in+chennai+with+contact+details+pdf In PDF document text
    • http://files.pghcru.org/uploads/1/3/1/4/131437822/50e36f230504ebb.pdfIn PDF document text
    • http://files.gethsemanedavenport.org/uploads/1/3/1/3/131383247/dunifik.pdfIn PDF document text
    • http://files.brooksidevt.net/uploads/1/3/0/9/130969572/gelezu_givazaguxiv_fubodisiles_jedemisozi.pdfIn PDF document text
    • http://tulupel.giantrvsales.com/uploads/1/3/2/3/132303382/dfa6f08b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6978/3720/files/torunadudilomomoxemor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7354/5116/files/14996877014.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4790/3644/files/96270395777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6043/6887/files/taxipugolejukob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9059/9319/files/58747238935.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1423/2984/files/30278363275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3822/6085/files/sims_4_repack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6880/7586/files/livros_sobre_o_candombl.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2531/6514/files/fuzulanopazezora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/42386580717.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9848/6424/files/86615410274.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006382.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6382 5064 bytes
SHA-256: 481d90cf31c336937ff1431c3e70136da7ae9f041821a1345a3164ec1467aaf0
font_01_sfnt_off000074bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74BB 10692 bytes
SHA-256: 0b4d7094dab266503544cb43c9b9b2e484cf298d4c8e4df9fa51975e10bd41dc
font_02_sfnt_off00009870.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9870 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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